12222042 has 32 divisors (see below), whose sum is σ = 28044672. Its totient is φ = 3478464.

The previous prime is 12222013. The next prime is 12222047. The reversal of 12222042 is 24022221.

It is not an unprimeable number, because it can be changed into a prime (12222047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16308 + ... + 17040.

It is an arithmetic number, because the mean of its divisors is an integer number (876396).

Almost surely, 2^12222042 is an apocalyptic number.

12222042 is an abundant number, since it is smaller than the sum of its proper divisors (15822630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12222042 is a wasteful number, since it uses less digits than its factorization.

12222042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 12222042 is about 3496.0037185335. The cubic root of 12222042 is about 230.3463088022.

Adding to 12222042 its reverse (24022221), we get a palindrome (36244263).

The spelling of 12222042 in words is "twelve million, two hundred twenty-two thousand, forty-two".